Results 71 to 80 of about 5,898 (199)

Electron Acceleration and Heating during Magnetic Reconnection in the Earth's Quasi-parallel Bow Shock

The Astrophysical Journal, 2023
We perform a 2.5-dimensional particle-in-cell simulation of a quasi-parallel shock, using parameters for the Earth’s bow shock, to examine electron acceleration and heating due to magnetic reconnection.
N. Bessho, L.-J. Chen, M. Hesse, J. Ng, L. B. Wilson III, J. E. Stawarz   +5 more
doaj   +1 more source

Integrative taxonomy supports DNA barcoding in revealing an abundant cryptic species in the United States Coastal Plain

Journal of Systematics and Evolution, EarlyView.
We present the most densely sampled phylogeny of Carex section Lupulinae to date (107 specimens) and describe herein a new cryptic species for science from the southern United States, which is locally abundant and found in well‐explored and densely populated areas. Combining DNA sequences with morphometric data obtained from 299 samples, we Demonstrate
Étienne Lacroix‐Carignan, Julian R. Starr, Robert F. C. Naczi, Eran S. Kilpatrick, Étienne Léveillé‐Bourret   +4 more
wiley   +1 more source

On the Formation of Super-Alfvénic Flows Downstream of Collisionless Shocks

The Astrophysical Journal
Super-Alfvénic jets, with kinetic energy densities significantly exceeding that of the solar wind, are commonly generated downstream of Earth's bow shock under both high- and low-beta plasma conditions. In this study, we present theoretical evidence that
Adnane Osmane, Savvas Raptis
doaj   +1 more source

The Interaction of Asymptotic Giant Branch Stars with the Interstellar Medium [PDF]

, 2012
We study the hydrodynamical behavior of the gas expelled by moving Asymptotic Giant Branch Stars interacting with the ISM. Our models follow the wind modulations prescribed by stellar evolution calculations, and we cover a range of expected relative ...
Arndt, Arturo Manchado, Beers, Binney, Blöcker, Brighenti, Brighenti, Burton, Chiba, Chu, Esquivel, Eva Villaver, Falle, Ferguson, Fleischer, Guerrero, Guillermo García-Segura, Gurzadyan, Höfner, Isaacmann, Kulkarni, López, MacDonald, Matthews, Matthews, Matthews, Raga, Raga, Ransom, Renzini, Ryde, Sahai, Schröder, Schröder, Smith, Soker, Stanghellini, Szentgyorgyi, Ueta, Ueta, van Marle, Villaver, Villaver, Villaver, Villaver, Wareing, Wareing, Willson, Winters, Wood, Xilouris   +50 more
core   +2 more sources

That sinkin’ feeling: Environmentally induced distress on a disappearing island

Medical Anthropology Quarterly, EarlyView.
Abstract Residents of Tangier Island, Virginia, a subsiding island in the Chesapeake Bay, embody psychosocial dimensions of environmental change. Analysis of ethnographic data shows islanders’ experiences and articulations of anxiety, panic, and despair as “that sinkin’ feeling,” resulting from the stress of living with the long‐term threat of imminent
Jonna Yarrington
wiley   +1 more source

Injection and acceleration of H⁺ and He²⁺ at Earth's bow shock [PDF]

Annales Geophysicae, 1999
We have performed a number of one-dimensional hybrid simulations (particle ions, massless electron fluid) of quasi-parallel collisionless shocks in order to investigate the injection and subsequent acceleration of part of the solar wind ions at the ...
M. Scholer, H. Kucharek, K.-H. Trattner
doaj   +1 more source

A Fast bipolar H2 outflow from IRAS 16342-3814: an old star reliving its youth [PDF]

, 2011
Some evolved stars in the pre-planetary nebula phase produce highly-collimated molecular outflows that resemble the accretion-driven jets and outflows from pre-main sequence stars.
Antoniucci, Bonnet, Bragg, Bujarrabal, Burton, Cabrit, Caratti, Claussen, Correia, Cox, Davis, Davis, Davis, De Marco, Eisenhauer, Elitzur, Garcia, García-Arredondo, García-Hernández, García-Segura, Gledhill, Gledhill, Gueth, Gustafsson, He, Hollenbach, Imai, K. P. Forde, Kastner, Königl, Lagadec, Lee, Lee, Lee, Lee, Likkel, Likkel, Livio, Martin, McCaughrean, Murakawa, Nakashima, Richer, Rosen, Sahai, Sahai, Sahai, Sahai, Sahai, Schmidt, Schultz, Schödel, Shu, Shull, Siódmiak, Smith, Smith, Smith, Smith, Soker, Stead, Suttner, Szymczak, Sánchez, T. M. Gledhill, te Lintel Hekkert, Thronson, Ueta, Verhoelst, Westbrook, Zijlstra, Zijlstra   +71 more
core   +2 more sources

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

Biological Reviews, Volume 101, Issue 3, Page 1406-1462, June 2026.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz, Maja Mielke, Stephan Handschuh, Anthony Herrel, Patrick Lemell, Léa Da Cunha, Nicolai Konow   +6 more
wiley   +1 more source

The Utility of Infrasound in Global Monitoring of Extraterrestrial Impacts: A Case Study of the 2008 July 23 Tajikistan Bolide

The Astronomical Journal
Among the various observational techniques used for the detection of large bolides on a global scale is a low-frequency sound known as infrasound. Infrasound, which is also one of the four sensing modalities used by the International Monitoring System ...
Elizabeth A. Silber
doaj   +1 more source

Asymptotic Steady State Solution to a Bow Shock with an Infinite Mach Number [PDF]

, 2015
The problem of a cold gas flowing past a stationary object is considered. It is shown that at large distances from the obstacle the shock front forms a parabolic solid of revolution.
Sari, Re'em, Yalinewich, Almog
core   +3 more sources